/*
 * Copyright 2021 DataCanvas
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package io.dingodb.driver.type.converter;

import io.dingodb.common.type.converter.DataConverter;

import java.sql.Timestamp;
import java.util.Calendar;

public class ConverterWithCalendar implements DataConverter {
    protected final Calendar localCalendar;

    protected ConverterWithCalendar(Calendar localCalendar) {
        this.localCalendar = localCalendar;
    }

    protected Timestamp unShiftedTimestamp(long timesInMillis) {
        if (localCalendar != null) {
            return new Timestamp(timesInMillis - localCalendar.getTimeZone().getOffset(timesInMillis));
        }
        return new Timestamp(timesInMillis);
    }

    protected Timestamp shiftedTimestamp(long timesInMillis) {
        if (localCalendar != null) {
            return new Timestamp(timesInMillis + localCalendar.getTimeZone().getOffset(timesInMillis));
        }
        return new Timestamp(timesInMillis);
    }
}
